So I go to lecture to the first year vet students this morning. It is their second day of class. One of the raises his hands and says the assigned reading didn't make any sense. Of course it doesn't make any sense. It's physiologoical chemistry.
First, I was appreciating they had actually read the material for today's lecture. That degree of motivation only lastsabout a week. Then I asked what he meant. He said the diagrams made no sense. I was offended. This was the brand new second edition of my textbook hot of the presses. I asked him to show me and I almost had a heart attack when I looked at the book. There were no lines or arrows in any of the diagrams. As you might imagine lines and arrows are essential for such diagrams so it looked like my son had taken his magnetic letters off the fridge and tossed them on the page.
I the asked the student if he paid the extra fee when he bought the book to which I got a blank stare. So I reply "you know the extra fee for the lines and arrows. They're not included in the base price".
After having a good laugh it turns out 7 of our 90 students have no lines or arrows. Luckily I had some extra copies in my office, so all ends well.
No matter how many times I teach the same thing it never goes the same way twice. That's lifes little lesson for the day.
I just finished a typing job for a chemistry book. My head was spinning!
I just couldn't remember all the chemicals in the cycles!
temps barely getting into the 70's as well. 
